Charles f desman



(No Model.)

0. FORSMAN. REGISTRY BLOCK FOR ELECTROTYPES.

Patented Dec. 8, 1896.

a H a! 4 A I I; I II I J l A NORA 5Y5.

. trotype with the ground is always obtained.

UNITED STATES PATENT OFFICE.

CHARLES FORSMAN, OF NEW YORILN. Y.

REGISTRY-BLOCK .FQR ELECTROTYPES.

SPECIFICATION forming part of Letters Patent No. 572,884, dated December8, 1896.

Application filed February 6, 1896.

T0 (IIZZ whom it may concern.-

Be it known that I, OHAELEs FORSMAN, a citizen of the United States,residing in the city, county, and State of New York, have inventedcertain new and useful Improvements in Registry-Blocks for Electrotypes,of which the following is a specification.

This invention relates to a registry-block for electro types or plates,the object of the invention being for the purpose of shifting theelectro types or plates without unlocking them from the block in such amanner that in color or other printing a perfect registry of the elec-The invention consists of a frame in which is mounted an adjustablebacking-plate, means for adjusting the backing-plate in the frame, anabutment-flange along one end and one side of the backing-plate, againstwhich the electro type or plate is abutted, and gripper-jaws whichengage the free edges of the electroplate and force the same against theabutment-flange, so that the electroplate is firmly locked on theregistry-block in such position that it can be adjusted even tohairbreadths, all as hereinafter described, and then particularlyclaimed.

In the accompanying drawings, Figure 1 is a plan view of myregistry-block for electroplates. Fig. 2 is a longitudinal section ofthe same on line 2 2, Fig. 1. Fig. 8 is a broken detail plan view of oneof the adjusting-shoes which are mounted in the frame of the block foradjusting the backing-plate. Fig. 4 is a section on the line 4 4, Fig.3, showing the backing-plate also; and Fig. 5 is a broken detail view ofthe main portion of the adjusting mechanism of the gripper-jaws whichengage the electroplate.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A indicates a rectangular frame which isprovided at its upper inner corner with a rabbet-groove a, which inpractice is of such size that a space of one-eighth of an inch is leftall around the, backing-plate B, which rests in the rabbetgroove. Thebacking-plate Bis of thin metal and is provided on its under side with asuitable number of transverse and longitudinallyextending shoulders I),against which abut the shoes 0, which are mounted in the main frameSerial No. 578,232. (No model.)

end and one side with an upwardly-projecting abutment-flange B and atthe opposite end and opposite side with slots 1), which eX- tend atright angles to the edges of the backing plate. Projecting upwardlythrough these guide-slots b are a series of gripper-jaws E E, which maybe separately adjusted, but which preferably, as shown in the drawings,are made adjustable in series, that is to say, three (E) of the same,which are arranged at one side of the backing-plate, areadjustedtogether and separately from the other two gripper-jaws E, which arearranged at one end of the backing-plate, and which are also adjustedtogether. The gripper-jaws E,which are guided in the slots at one sideof the backing-plate, are adjusted by means of a rectangular frame F,the central bar F of which is provided with a laterally-extending rod f,which is provided with a screw-thread, and carries at its outer end thecentral one of the gripper-jaws E. This screw-threaded rod f passesthrough a screw-threaded opening in one of the ribs which go to make upthe skeleton interior A of the main frame, said rib being provided witha lateral lug g, within a recess g of which, that extends at rightangles to the screw-threaded opening through which the rodf passes, isarranged an adjusting-nut G. At the end of the backing-plate B,in whichthe gripper-jaws E are guided, is also arranged an adj usting-frame H,which is similar in function to the adj Listing-frame F and which movesat right angles to the latter. This adjusting-frame H, that carries theend gripper-jaws E, is adjusted in a similar mannor to theadjusting-frame F, that is to say, by a central screw-threaded rod h,projecting from the main bar of said frame and passing through one ofthe ribs of the skeleton inte rior of the main frame, saidscrew-threaded rod h being adjusted by means of a nut h, similar to thenut G.

My improved registry-block is adjusted and used as follows: Theelectroplate I, which is without the usual wooden-block mount, is firstabutted with one end and one side against the end and sideabutment-flange B on the backing-plate B. The nuts G h of theadjusting-frames are then rotated in any suitable manner, so that thelatter are moved, and consequently the gripper-jaws E E caused to engagethe other side and end of the electro plate, whereby the latter isfirmly locked in position upon the backing-plate. The backing plate,together wit-h the electroplate mounted thereon, is now adjusted,according to the registration which is desired upon the ground to beprinted in colors, by means of the adjustable shoes 0, which areadjusted by the rotation of the nuts D, said shoes 0 pivoting on theshanks 0, according to the angle at which the backing-plate and theelectroplate are arranged to the main frame A.

Of course the backing-plate and the electroplate may sometimes beadjusted with their sides and ends at right angles to the sides and endsof the main frame, in which case the shoes 0 are arranged at rightangles to the shanks O.' The slight play of one-eighth of an inch oneither side of the backingplate B is sufficient for practical purposes.

Of course, if desired, the main frame .A may be provided with suitablegraduations, and the backing-plate be provided with an indicating-markwhich is adapted to register with the graduations, so that theadjustment of the backing-plate upon the frame may be accuratelydetermined.

By means of my improved registry-block for electroplates it is possibleto secure the accurate. registry of the electroplate with the workwithout unlocking the same from the chase. Other advantages of theinvention are that the device Will not shrink like the ordinary woodmounting on which the electroplates are usually mounted; that the blockis so solid it will not spring; the device will soon pay for itself, asthe electroplates need no Wooden blocks, and underlaying directly underthe plate is permitted Without any chance of the sinking of theelectroplate, as when mounted on wood blocks.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- 1. The combination of a main frame provided with arabbet-groove, a backing-plate mounted on the main frame, in therabbetgroove,and having a space all around the edges of the same, meansfor adjusting the backingplate in the rabbet-groove of the main frame,and means for locking an electroplate on the backing-plate,substantially as set forth.

2. The combination of a flat rectangular main frame, a backing-platemounted 011 the main frame and provided with an abutmentflange at oneend and one side, said backingplate being of less length and width thanthe space of the frame in which it is contained, gripper-jaws guided inthe backing-plate and adapted in connection with the abutmentflange tolock an electroplate in position on the backing-plate, and means foradjusting the backing-plate on the main frame, substantially as setforth.

3. The combination of a main frame, a backing-plate mounted on themainframe and provided with depending shoulders,longitudinally-adjustable shanks guided in the main frame, shoes hingejointed to said shanks and adapted to engage said shoulders, and meansfor locking the electroplate in position upon the backing-plate,substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in pres ence of two subscribing witnesses.

CHARLES FORSMAN. \Vitnesses:

PAUL GoEPEL, Gno. W. JAEKEL.

